PDFロック解除
PDFからパスワード保護を解除
Drop your PDF file here
or click to browse
ブラウザ処理
ファイルはブラウザ内でローカル処理されます
自動削除
処理後、ファイルは自動的に削除されます
登録不要
アカウント作成なしですべてのツールをご利用いただけます
どこでも動作
あらゆるデバイス、あらゆるブラウザで、インストール不要
PDFのロック解除方法
PDFをアップロード
保護されたPDFを選択またはアップロードエリアにドラッグします。
パスワードを入力
ドキュメントのロックを解除するために現在のパスワードを入力します。
保護を解除
ロック解除をクリックしてパスワード保護を解除します。
ダウンロード
ロック解除されたPDFファイルをダウンロードします。
Why Unlock PDF Restrictions?
PDF restrictions can prevent legitimate use of documents you own or have permission to use. Unlocking removes these barriers so you can print, copy, or edit as needed.
Common Restriction Issues
- Can't Print: The document opens but printing is disabled.
- Can't Copy Text: Selecting and copying text is blocked.
- Can't Edit: Form filling or annotation is restricted.
- Can't Extract Pages: Splitting or reorganizing is disabled.
What This Tool Does
This tool removes owner-level restrictions (permissions) from PDFs. It cannot bypass user passwords that prevent the PDF from opening. If you can view the PDF but can't perform certain actions, this tool can help.
よくある質問
What restrictions can this tool remove?
This tool removes printing restrictions, copy/paste restrictions, editing restrictions, and annotation restrictions from PDFs.
Can this tool crack PDF passwords?
No. This tool removes owner permission restrictions but cannot open PDFs that require a user password to view. You must know the open password.
Is unlocking PDFs online safe?
Yes, your files are processed securely in your browser and are never uploaded to external servers. Your documents remain completely private.
Is this PDF unlock tool free?
Yes, our PDF unlock tool is completely free with no registration, watermarks, or hidden fees.
Why can't I print or copy from my PDF?
The PDF creator set owner restrictions to prevent these actions. Our tool can remove these restrictions if you have legitimate access to the document.
What's the difference between user password and owner password?
User password locks the PDF from being opened at all. Owner password restricts actions like printing and copying. We can remove owner restrictions but not user passwords.
Is it legal to unlock a PDF?
Unlocking PDFs you own or have permission to modify is legal. Removing restrictions to circumvent copyright protection or access unauthorized content may violate laws.
My PDF asks for a password to open - can you help?
If the PDF requires a password to open (user password), you must enter that password. Our tool cannot bypass this security. If you've forgotten the password, contact the document creator.
Will unlocking affect the PDF content?
No, unlocking only removes restrictions. All content, formatting, images, and quality remain exactly the same.
Can I unlock a PDF on my phone?
Yes, our tool works on any device with a web browser including iPhones, Android phones, and tablets. No app download required.